Where would we be—without 3D?

While we might think of 3D as a recent invention, it is not. Inventors have been fine-tuning it for decades, centuries even. 3D enables us to see imagery more naturally, with depth. Today is National 3-D Day in the US of A. Three-deee means different things to different people. To some, it means stereo vision, and truth be told, that was the original thought when 3-D Space, a nonprofit dedicated to the preservation of stereoscopic images, founded National 3-D Day two years ago. But, the history of 3D dates earlier than that. There is a nice timeline story here, along